Used or refurbished ones tend to be closer in price and I’ve seen some on Amazon and the like for a couple hundred

Buy commercial signage displays they are nice tvs without all the smart garbage

In farming and small business’s it’s very common to see kids working in the us

I use zerotier personally

I’ve ran basically your exact setup for years now with no issues have a mini pc with dual nic running opnsense a eap640( I think can’t remember off top my head ) and a tplink switch with minimal issues have to restart the ap once in a while and restart my mini pc but that’s due to a failing nic I’m pretty sure

I may be wrong here but the tp link issues were in the more consumer based hardware and not the eap and switch

I’m not choosing at random lol that would be crazy but I mostly use python and have been teaching myself go and some rust

Ah I’m unfamiliar with most languages I just use python and random others for personal projects

Another guy just posted emojis in their code in the comments no idea if it actually works